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ABSTRACT: This paper presents the design and measured results of a
high-performance, miniature 6-/4-GHz receiver for on-board satellite
applications. The receiver has a gain of 76 dB, weighs less than 500 g,
and consumes less than 5 W of DC power. Extensive use is made of
custom-designed monolithic microwave integrated circuit (MMIC) chips for
all RF functions, to achieve a high level of reliability and
miniaturization. A pseudomorphic high-electron-mobility transistor
(p-HEMT) C-band low-noise amplifier with 40-dB gain and a room
temperature minimum noise figure of approximately 0.85 dB is used in the
front end. Gain adjustments are provided in l-dB steps at IF frequency
between 3.5 and 4.5 GHz
Microwave Symposium Digest, 1999 IEEE MTT-S International; 02/1999
